Sorry if this is old news, but I saw a preorder for these little impulse type sets from Japan for Ninjago. Was thinking about ordering some but it seems like Japan doesn't get too many things that the US doesn't. So I figured I'd ask you experts whether or not you've seen similar sets here in the US?

Saw these floating around Walmart in the weeks leading up to Easter, along with 3 different Friends polybags and the Star Wars polybags. I haven't seen the hidden sword set, but would love to nab one of those!